# SDR 2026FA0000804

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 1, 2026
- Submitted: October 1, 2026
- Operation: General aviation
- Aircraft: [N37CL](https://openairdocs.org/aircraft/N37CL), registered now
- Make and model: Cirrus SR22T
- Registry model: [Cirrus SR22T](https://openairdocs.org/model/cirrus-design-sr22t) (OpenAirDocs)
- Aircraft serial: 8745
- Aircraft time: 500 hours, 500 cycles
- System (JASC): [2700 · Flight Control System](https://openairdocs.org/jasc/2700)
- Part: Flt Controls
- Condition: Corroded
- Location: Zone 300
- Part time: 500 hours, 500 cycles
- Stage of operation: IN
- How discovered: B
- Nature of condition: W, G, F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2026FA0000804

## Discrepancy

ALL FLIGHT CONTROLS BORESCOPED. ALL FLIGHT CONTROLS EXHIBIT CORRISION THROUGHOUT, FLAPS, AILERON, & RUDDER. CORROSION FOUND THROUGHOUT ALONG THE SEAM LINES FROM INADEQUATE SURFACE PREP AND THROUGHOUT THE FLIGHT CONTROL STRUCTURE AND RIVET JOININGS. EXAMINED A 2016 SN 1841 WHICH LOOKED BRAND NEW. PHOTOS PROVIDED FOR THE DOCKET.

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